Have you ever tried to come up with a creative solution to a problem but nothing comes to you no matter how hard you concentrate? That's because creative solutions come to us most often when we're not concentrating on the problem at hand.

In this video from Big Think, psychologist and intelligence expert Scott Barry Kaufman explains that our most creative ideas tend to come from our subconscious. Research shows that our "Ahh ha!" moments come to us as one big idea after our subconscious has put the pieces together behind the scenes.